1920 U.S. Census, Baltimore City, Maryland
Supervisor’s District 2, Enumeration District 116, Sheet 2B
1619 Lanvale Street
Dwelling 38, Family 40
Schmidt, Charles, head, owns free of mortgage, male, white, 45, married, can read and write, born in Maryland, father born in Germany and spoke German, mother born in Maryland, speaks English, musician in orchestra, wage worker
Schmidt, Matilda, wife, female, white, 47, married, can read and write, born in Maryland, both parents born in Germany and spoke German, speaks English, no occupation
Schmidt, Ferdinand, son, male, white, 17, single, in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation

1930 U.S. Census, Baltimore City, Maryland:
Ward 8, Block 151
Enumeration District 4-110, page 16
Enumerated 6 April 1930
1619 Lanvale Street
Dwelling 1, Household 1
Schmidt, Charles, head, owner, value of real estate $4,737, owns radio, white, male, age 56, age at first marriage 26, not in school, can read and write, born in Maryland, father born in Germany, mother born in Maryland, speaks English, teacher of music, at work previous day, not a veteran
Schmidt, Matilda C., wife, female, white, age 57, age at first marriage 28, not in school, can read and write, born in Maryland, both parents born in Germany, speaks English, no occupation
Schmidt, Ferdinand H., son, male, white, age 27, not in school, can read and write, born in Maryland, both parents born in Maryland, no occupation

1940 U.S. Census, Baltimore City, Maryland
Sheet 88
1619 Lanvale Street
Home owned, value 1800, not a farm
Schmidt, Charles, head, male, white, 68, married, attended school to grade 8, born in Maryland, residence in 1935 same house, residence in 1935 not on a farm, private work, hours worked 40, manager of grocery store, 52 weeks worked in 1939, income 1000, no other income
Schmidt, Matilda C., wife, female, white, 66, married, attended school to grade 8, born in Maryland, residence in 1935 same house, residence in 1935 not on a farm, housework, no other income
Schimdt, Frederick, son, male, white, 37, single, attended school to first grade of high school, born in Maryland, residence in 1935 same house, residence in 1935 not on a farm, not at work or seeking work, unable to work, no other income